APA (7th ed.) Citation

Koelbing, L. Archivmaterialien zu Ludwig Koelbing.

Chicago Style (17th ed.) Citation

Koelbing, Ludwig. Archivmaterialien Zu Ludwig Koelbing.

MLA (9th ed.) Citation

Koelbing, Ludwig. Archivmaterialien Zu Ludwig Koelbing.

Warning: These citations may not always be 100% accurate.